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How to get the parent dir location
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os.pardir is a better way for ../ and more readable.
import os
print os.path.abspath(os.path.join(given_path, os.pardir))
This will return the parent path of the given_path
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How to printf uint64_t? Fails with: “spurious trailing ‘%’ in format”
...these macros must only be defined if explicitly requested.
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
... now PRIu64 will work
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Loop through an array of strings in Bash?
...rr=("element1" "element2" "element3")
## now loop through the above array
for i in "${arr[@]}"
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line array declaration
declare -a arr=...
Scala: What is a TypeTag and how do I use it?
All I know about TypeTags is that they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
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C++ project organisation (with gtest, cmake and doxygen)
... a library as opposed to an actual application. Your headers are the
basis for users to interact with what you offer and must be
installed. This means they have to be in a subdirectory (no-one wants
lots of headers ending up in top-level /usr/include/) and your
headers must be able to include themse...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...sents the memory structure of objects beyond the current compilation unit (for example: a foreign library, a file on disc, network data, CPU page tables, ...). In such a case the binary structure of data is also defined in a place inaccessible to the compiler, so reordering the struct fields would c...
SQLAlchemy IN clause
...conn.execute(s, id_list=tuple(id_list)).fetchall()
Hope everything works for you.
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Aren't Python strings immutable? Then why does a + “ ” + b work?
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@delnan and so, what? For the sake of showing that strings and lists behave differently you can assume that a = a+"Foo" is the same as a.append(something). In any case it's not the same. Obviously. Were you happier reading a.extend([something]) in...
Remove not alphanumeric characters from string
... underscores use e.g.:
input.replace(/[^0-9a-z]/gi, '')
The input is malformed
Since the test string contains various escaped chars, which are not alphanumeric, it will remove them.
A backslash in the string needs escaping if it's to be taken literally:
"\\test\\red\\bob\\fred\\new".replace(/\...
UIRefreshControl without UITableViewController
...oc] init];
[refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
[self.myTableView addSubview:refreshControl];
This adds a UIRefreshControl above your table view and works as expected without having to use a UITableViewController :)
EDIT: ...